Official specs and features for the Honda GSV190 OHC engine. The GSV190 is a small … Net Power Output*, 5.1 HP (3.8 kW) @ 3,600 rpm. Net Torque, 8.3 lb-ft .
Specifically designed for home-use power equipment applications, the GC190 provides an ideal source of power for a variety of consumer products.
The base GCV190 engine on Honda’s engine site lists the power at 5.1 @ 3,600 rpm, but the HRX mower runs closer to 3,100 rpm. It is, however, tweaked to provide max power at 3,100, so the lawn mower version of the engine on the HRX is probably 5+ horsepower.
Thinking it had a 6.5 HP engine, I bought a HRX217VKA and googled the GCV190 engine.
Honda GC190 (9.0 HP) small engine specifications: horsepower and torque, cylinder compression, oil type and capacity, spank plug type, service data and .
The Honda GCV190 is a small (187 cc) single-cylinder air-cooled 4-stroke internal combustion gasoline engine with vertical shaft, manufactured by Honda Motor .
Honda Vertical Engine 5.1 Net HP 190cc OHC #GCV190-MY7 … Honda HRB217TDA Mower Replacement engine. 5.1 Net HP Formerly Rated 6.5 HP .
6.5hp Honda OHC Replacement engine for Mowers. 2 year consumer/ 90 day commercial warranty. Model GCV190-N5B. 29 lbs.
I dont know of any regulations. Some mfrs have started to advertise torque ratings instead, and others spec the cc rating (Honda 160cc, 190cc) .